Craig Sechler

Self - Narrator (voice)

Gerry Moffatt

Self - Explorer

William Whatley

Self - Colorado Witness

Michael Dailey

Self - Wyoming Witness

Dorsey Armstrong

Self - Wyoming Witness

Ken Avinon

Self - Forest Protection Officer

Cindy Avinon

Self - Ken's Wife

Jeffrey Meldrum

Self - Researcher, Idaho State University (as Dr. Jeff Meldrum)

Reba Jo Teran

Self - Eastern Shoshone Tribe

Dawa

Self - Sherpa

Ian Redmond

Self - Primatologist

Lhakpa Dolma

Self - Yeti Attack Victim

Dan Oliver

Director

Peter Allibone

Director de Fotografía

Paul Moessl

Compositor de la Música Original

National Geographic

Compañía de Produccion

Alex Archer

Editor